<?php $cs = Yii::app()->clientScript;
$cs->registerCssFile(Yii::app()->theme->baseUrl.'/styles/form.css');
?>
<div class="form wide">
<?php CHtml::beginForm('');?>
    <div class="row">
        <?php $this->widget('ContentTypeDropDown', array(
//            'IncludeCoreTypes' => true,
        ))?>
    </div>
<?php CHtml::endForm(); ?>
</div>